MIP - CPLEX solver does not give optimal solution in a facility location problem
Posted: Sat May 12, 2018 8:18 pm
I'm somewhat new to GAMS, and totally new to this forum,
I was hoping that someone could help me to understand why my model "All13" gives a solution that differs from my model "max7" (attached). I hoped that the model All13 (obj= 26,608,552) would give the minimum cost over all combinations. However, when running some scenarios, I observed that does not happen. As exemplified in by model max7 (obj= 25,415,487), where I find a lower cost than in All13.
The model aims to minimize total cost considering transportation cost and capital investment. It decides the supply configuration, plant locations and the capacity of each plant. Could someone please help me to improve "all13"? or help me to understand why it does not minimize the total cost?
Thank you so much,
Luana
I was hoping that someone could help me to understand why my model "All13" gives a solution that differs from my model "max7" (attached). I hoped that the model All13 (obj= 26,608,552) would give the minimum cost over all combinations. However, when running some scenarios, I observed that does not happen. As exemplified in by model max7 (obj= 25,415,487), where I find a lower cost than in All13.
The model aims to minimize total cost considering transportation cost and capital investment. It decides the supply configuration, plant locations and the capacity of each plant. Could someone please help me to improve "all13"? or help me to understand why it does not minimize the total cost?
Thank you so much,
Luana